Question

to get a more intense workout, maya needs to transfer more energy to the battle ropes.
one way maya does this is by moving her arms farther up and down to make the waves in
the ropes taller. in this graph, the blue line models a wave maya created with a battle rope
earlier in her workout. the orange line models a wave maya creates by moving her arms
farther up and down.
describe what happens when maya moves her arms farther up and down. complete the
sentence.
maya transfers more energy to the rope and ____________ of the wave.
increases the frequency
decreases the frequency
increases the amplitude
decreases the amplitude

Explanation:

Amplitude is the maximum displacement of a wave from its rest position. The orange line (Maya moving arms farther) has a larger maximum displacement (2 ft vs the blue line's 1 ft), so amplitude increases. Frequency (number of waves per unit length) is the same for both lines, as they complete the same number of cycles over the 20 ft position range.

Answer:

increases the amplitude